I pointed out several times your Bibled numbers are highly inflated (or downplayed when it's about HID) and do no reflect reality. See the other thread in which I explained the difference with reality... if Sunnie hasn't deleted that one yet. Weird selective moderating going here but what else is new...
"HPS is 35% efficient, LED is 49% efficient" Just a typical example.
It's like saying a car can go 80 miles per hour and a boat 40 and then conclude you'll go from point A to B 2 times faster in the car thus the car is the better choice or superior. You don't care about helping growers make an informed decision. The whole efficiency thing you guys are blinded by measures just one thing, your bias.